Improved circular brush



r' UNITED STATES PATENT Ormea MARTIN RQBBINS AND CHARLES HEERY, ()F CINCINNATI, OHIO, ASSIGNORS To' CHA-anus Hanau;

IMPRovEpemeuLAn BRUSH.

Specification forming,- part of Letters nPatent No. '42,625.- (lated` May ll, 1864.v

- ein e -ya' iieelsl:imneybruslree, utilities-adress,-

Stc.; and, our invention consists a system or' nut-s, washers, and central hub or stem, by which tile bristles are secured or replaced in,

a more expeditious, strong, and uniform inanbrushes, andhave selected to' illustrate our ner than by any customary method. y

Figures. l and 2 respectively an axial,4 secties and a perspective view et' an emery# 'siieel embodying our intention. Ili ffs. 3 and 4 resent sleeve and washer forming a part "le said. wheel; Figs, 5 and. @i represent rliiications ci' the central portion. or bnb. I and S are ewa-bs embodying our i -Vention.

A l in the several gures represent various forms 'of cheeks, nuts, or beads constituting the hub,"7 adapted to serew fast te each other or to a central stem, C.

D are washers, provided at equal distances with apertures or niches ci', forthe insertionvoinumerous small bundles of bristles, E, which, being bent around the marginal portion ofthe Washer, 'are temporarily secured by wire lashings c, which are taken oit' after the ,brnsh is put together. The portions of the' uasher which intervene between'the bundles ef'- b is` tles, insure an exact uniformity, and prevenirV any crowding oi' the bristles to one side.

D are blank washers, one or more of which may be inserted between every two consecu` ,l tire brush-Washers when an open form oil-5,'

brush is desired.

tained by alternating each bristlef washer with a threaded Washer or nut., [as in the musketswab represented atFig. 8. A portion of such a swab may be broken oft', and yet the bristles In the swab form of ,our improvement the washers D are made with a progressively preach the tip, so as to form a bristled extremity to the swab, the whole beingsecured by the screwing on of one or more end nuts, A' B', as in Fig. 7, or by screwing each in dt vidual washer tothe stem, as in Eiga 8.

and 6, slidingsleeves F prevent any interference of the bristles `with the thread oi'- the screw. r .Although .we have used the term i circular improvement forms having" a circular trans verse section, we do not desire to restrict the or other contour maybe given to the bristles, vand the washers may at the same time be' either circular or polygonal. f

may themselves screw onto the stem.

Split Whalebone, tampico, wire, &c., may taire the place of bristles for-some. of tbe eoarser kinds of brushes.

We claim herein as new` and ot our inve-n tion-v As animprcvement in the manufacture et brushes, swabs,.emerylwheels, and analogous articles, the combination ofthe bristle-'washers v .,D, substantially 'as described, withscrew-4 clamps of any suitable form, either with or without central stems orinterinediat'e washers.

-In testimony of 'which indention we here- ".unto set our hands.

MARTIN RCBBINS.

- CHARLES HEERY Witnesses z Gufo; E, KNIGHT, J. Materias.

on the remaining portion will remain in place. ,A

(lished or cup-formed depression as they zipl-ns'ibe tbrms represented .in-Figs. 17.2, 3,13,

4invention to brushesoil circular or cylindrical exterior merely, as a square, a' sennclrcular,

lt is also obvious that the bristlewshers 

